Filter cartridge



FIG. 1 is a rear top right perspective view of a filter cartridge, showing the new design;

FIG. 2 is a rear top left perspective view thereof;

FIG. 3 is a front top left perspective view thereof;

FIG. 4 is a front top right perspective view thereof;

FIG. 5 is a rear bottom right perspective view thereof;

FIG. 6 is a rear bottom left perspective view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a front view thereof;

FIG. 9 is a left side view thereof;

FIG. 10 is a right side thereof;

FIG. 11 is a top view thereof; and,

FIG. 12 is a bottom view thereof.

The broken lines in the figures show portions of the filter cartridge that form no part of the claimed design. 

CLAIM The ornamental design of a filter cartridge, as shown and described. 